I have a sweet 1980 wing with a vetter. When the temperature hits 80-85 it dumps lots of very hot air right in your lap. I don't want to drill holes in the vetter to mount winglets. Any other options? It gets very hot for the driver.

Hopefully you are wearing full pants and a jacket when riding..
Some complaints I have heard about this excess heat have been from people who are riding in shorts..And th ebare skin gets cooked pretty fast near the open engine compartment.
On my sons '80 INterstate he also has this issue a bit...
Jeans can be a good cool down if you wet them before you ride out....or splash water on your legs as you ride from your beveridge holder...
Wings can help re-direct cooling air onto you laap as well..a shorter windscreen may also change the aerodynamic bubble we sit in behind our shields...
Maybe the addition of some highway pegs can help as well by getting your lkegs out into the air stream by the crash bars...
One sure way is to upgrade to a 1500 -- no open engine compartment...radiant heat is displaced out the bottom rather than onto your legs...

If that is a Vetter #5 faring,like mine, good luck on finding and installing the "winglets". Even the founder of Vetter admits they are hard to find and mount.My advice is to forget them.Besides-I think the bike looks better without them! Regards, Johnyy